IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2016  > Vol13 No.2
Anthropogenic, detritic and atmospheric soil-derived sources of lead in an alpine poor fen in northeast China
BAO Kun-shan; WANG Guo-ping; TSERENPIL Shurkhuu
Corresponding AuthorBAO Kun-shan
2016-02
Source PublicationJournal of Mountain Science
ISSN1672-6316
Volume13Issue:2Pages:255-264
Subtype期刊论文
AbstractOmbrotrophic bogs are faithful archive of atmospheric metal deposition, but the potential for fens to reconstruct environmental change is often underestimated. In this study, some new data on the Pb depositional history in northeast China were provided using two 210Pb-dated peat sequences from a poor fen in the Fenghuang Mountain of Heilongjiang province. Anthropogenic, detritic and atmospheric soil sources were discriminated using a two-step sequential digestion (weak acid leaching to liberate mobile Pb which is often regarded as anthropogenic Pb, especially for recent samples) and a ratio of unsupported 210Pb and supported 210Pb with the logic of that the 214Pb mainly represents the residual detritus (constant throughout the core) and the unsupported 210Pb arises from atmospheric fallout. A higher 210Pb/214Pb suggests more contributions from atmospheric deposition to the Pb content in the peat, and a ratio of 10 was defined to indicate the boundary between detritic input and atmospheric deposition. The detritic Pb was estimated to be 10−13 mg·kg−1, the anthropogenic Pb ranged from 10−80 mg·kg−1, and the atmospheric soil-derived Pb ranged from < 5 mg·kg−1 to 30 mg·kg−1. The history of anthropogenic Pb pollution over the last 150 years was reconstructed, and the calculated Pb deposition rate (AR Pb) ranged from 5 to 56 mg·m-2·yr-1. Using Ti as a reliable reference, the enrichment factor of Pb (EF Pb) relative to the upper continental crust was calculated. Both AR Pb and EF Pb increased with time, especially after the foundation of the People’s Republic of China. This is consistent with increasing industrialization and coal burning in the last 60 years in northeast China. The present record of anthropogenic Pb deposition was consistent with the previous reports and an increasing trend of environmental pollution due to anthropogenic activities, in contrasts to Europe and North America which have experienced a major environmental cleanup. For the first time, this work estimates atmospheric Pb deposition via a minerotrophic peat core in China. This will enhance the use of peat archives for studies of environmental change.
KeywordOmbrotrophic Bog Minerotrophic Peatland Pb Deposition Rate Enrichment Factor 210pb And 137cs Metal Pollution
DOI10.1007/s11629-015-3542-6
Indexed BySCI
Language英语
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/14072
CollectionJournal of Mountain Science_Journal of Mountain Science-2016_Vol13 No.2
Recommended Citation
GB/T 7714
BAO Kun-shan,WANG Guo-ping,TSERENPIL Shurkhuu. Anthropogenic, detritic and atmospheric soil-derived sources of lead in an alpine poor fen in northeast China[J]. Journal of Mountain Science,2016,13(2):255-264.
APA BAO Kun-shan,WANG Guo-ping,&TSERENPIL Shurkhuu.(2016).Anthropogenic, detritic and atmospheric soil-derived sources of lead in an alpine poor fen in northeast China.Journal of Mountain Science,13(2),255-264.
MLA BAO Kun-shan,et al."Anthropogenic, detritic and atmospheric soil-derived sources of lead in an alpine poor fen in northeast China".Journal of Mountain Science 13.2(2016):255-264.
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